If it is available, yes - though you can control that by setting the oob_tcp_if_include[exclude] flags
On Apr 5, 2010, at 3:44 PM, David Turner wrote: > Hi all, > > Please, some clarification. I have built Open MPI 1.4.1 against > our IB verbs layer, and all seems well. But a question has come > up about IPoIB. While all communications are using the "native" > IB interface (verbs), will mpirun use IPoIB during job launch > and teardown? > > If it matters, resource allocation is via torque. > > Thanks! > > -- > Best regards, > > David Turner > User Services Group email: dptur...@lbl.gov > NERSC Division phone: (510) 486-4027 > Lawrence Berkeley Lab fax: (510) 486-4316 > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users